code: def from_dict(
      cls, data: Dict[str, Any]
  ) -> "MergeLoop":  # pylint: disable=missing-function-docstring
      if "type" not in data:
          raise DeserializationError(
              "Missing 'type' in component serialization data"
          )
      if data["type"] != f"{cls.__module__}.{cls.__name__}":
          raise DeserializationError(
              f"Class '{data['type']}' can't be deserialized as '{cls.__name__}'"
          )
  
      init_params = data.get("init_parameters", {})
  
      if "expected_type" not in init_params:
          raise DeserializationError(
              "Missing 'expected_type' field in 'init_parameters'"
          )
  
      if "inputs" not in init_params:
          raise DeserializationError(
              "Missing 'inputs' field in 'init_parameters'"
          )
  
      module = sys.modules[__name__]
      fully_qualified_type_name = init_params["expected_type"]
      if fully_qualified_type_name.startswith("builtins."):
          module = sys.modules["builtins"]
      type_name = fully_qualified_type_name.split(".")[-1]
      try:
          expected_type = getattr(module, type_name)
      except AttributeError as exc:
          raise DeserializationError(
              f"Can't find type '{type_name}', import '{fully_qualified_type_name}' to fix the issue"
          ) from exc
  
      inputs = init_params["inputs"]
  
      return cls(expected_type=expected_type, inputs=inputs)
  
file_path: haystack/haystack/testing/sample_components/merge_loop.py
imports: from typing import List, Any, Optional, Dict
  import sys
  from haystack.core.component import component
  from haystack.core.errors import DeserializationError
  from haystack.core.serialization import default_to_dict
label_desc: Use image node_id 3 for calling the MergeLoop obj's underlying member method code with example usage: obj.from_dict(cls, data) and returns: cls